Water-tube boiler.



PATENTBD JAN. 22, 1907.

H. DEL MAR. WATER TUBE'BOILER'.

AYPLIOATION FILED JUNE 26. 1906.

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' PATENTEDJAN. 22, 1907-.

H. DEL MAR.

WATER TUBE BOILER.

APPLICATION FILED 11111 26, 1906.

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HARRY DEL MAR, on NEW YORK, N. Y., ASSIGNOR TO BOlLERS AND ENGINEERING COMPANY, or JERSEY our, NEW JERSEY, -A' GOR- PORATlON NEW JERSEY.

WATER-TUBE BOILER.

Specification of Letters'Patent.

I Patented Jan. 22, 1907.

Application filed June 19%. Serial No. 323,428.

To all whom it may concern;

Be it known that I, HARRY DEL MAR, of,

the city, county, and State of New York, have invented a new and Improved Sectional Wa ter-Tu'be SteamBoiler, of which the following is a full, clear, and exact description.

My invention relates to steam-boilers of the waterrtube type; and the object ofmy in-,

' vention is to produce a sectional water-tube steam-boiler of the cross-tube style having side water legs or drums from which issue a set of tubes designed to go under the crosssectional series of tubes and to fill in or occupy the space made by the incline of the.

cross-tube series Another object of my inventionis to produce a boiler having a door-header or manifold or series of manifolds used in the construction of what is termed a lowset side.- fired cross-tube sectional boiler, so that each manifold is connected by a tube to the one next to it, and each manifold is also connected to a mud-drum or water-leg for depositing scale or sediment and-feeding water to themanifold series. In this connection it is also an object of my invention to arrange the manifolds so that they can be easily cleaned out by removing a cap, plug, or similar device designed for the purpose. By my arrangement I avoid choking the manifold or header with scale or sediment and the consequent interruption of circulation and rupture of tubes.

By the arrangement which I have referred to in a general way I gain additional heatingsurface within the same space limits of the ordinary cross-tube sectional boiler besides.

improving the circulation of the water within the tubes and in general giving greater efficiency. With these ends in view and with the general object of producing a highly-,efli

cient boiler my invention consists of certain features of construction and combinations of parts, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference in dicate corresponding parts in all views.

Figure 1 is a side elevation, partly in vertical section, of the boiler embodying my invention. Fig. 2 is an end view, partly in 'sec tion, on the line 2 of Fig. 1; and Fig. 3 is a detail section plan showing the connection between one of the manifolds and an adjacent header.

The boiler is provided with a steam-druni 10 of ordinary type, which connects at the end with oppositely-arranged and downwardly extending downfiow tubes 11 and 11, which deliver into the end and middle portions of the two side headers 12, which form each practically an entire boiler side. The boileris also provided on opposite ends with upper and lower headers 13 and 14, which-are arranged in series, as shown clearly in Fig. .2, and the upper headers 13 are preferably of about twice the width of the lower headers 14:. These headers are preferably pitched slightly, as shown in'Fig. 1,'and the upper headers each connect with the steamdrum by-a pair of tubes 15, andeach upper header has also below the tubes 15 and out of .alinement therewith tubes 16, which extend into the steam-drum 10. Connecting the upper and lower headers 13 and 14 on opposite sides of the boiler are likewise inclined cross-tubes .17, and as the opposed upper and lower headers are of different widthand prac-,

connect by the nipples 20 with the manifold or door headers 21, which are arranged above the doors of the boiler, as shown clearly in Figs. 1 and 2. gether by a tube or nipple 22, and it will be seen that there may be a greater or less number of manifolds or door-headers without affecting the principle of the invention. The manifolds have suitable caps 23* at the outer ends, (see Fig. 3,) which can be removed for cleaning purposes, and similar caps 2-3 'on the side headers 12 can be removed, so that a The manifolds connect to-' c e ing in t ument can be th ust longitudinally through the series of manifold-headers. Likewise a cap 14 is provided on each header 14 opposite the connections 20 and tubes 1 7 to provide for cleaning out the-tubes. This is shown in Fig. 3. The manifold can also connect with the mud-drums 19, as shown at 23 in Fig. 1, if desired.

An important feature of my invention lies in the arrangement of the horizontal crosstubes 24, which are staggered so as to get the full benefit of the heat, and these are arranged at right angles to the cross-tubes 17 and connect the side headers at a point voccupying the space caused bythe incline-of the said cr.osstubes 17. I

The mud-drums 19 connect with the side headers by nipples 25, and caps 26 are rovided on the outside of the headers in ine with the pipes or tubes 25, so that by removing the caps the tubes-and drumcan be easily reached for cleaning purposes.

From the foregoing description it will be seen that I provide a cross-tube sectional boiler having the heating-space entirely .occupied, that the arrangement is such as to rovide forqu'ick steaming and a free circuation, and that the parts are also easily ac cessible for cleaning and repair purposes. It will be seen that the downflow of water from the steam-drum is amply provided for and that the upflow through the headers and cross-tubes is also well provided for.

A high-set boiler is one in which the muddrums are above the door, and in this case.

manifolds are not necessary; but it will be seen that my connections outside-of the manifolds, but including the tubes 2-4, can be used with ahigh-set boiler, as in this case the manifold is superseded by a mud-drum. 7

Having thus fully described my invention I claim as new and desire to secure by Letters Patent 1. In a boiler of the kind described the manifolds having means for opening tlte ends, and forming a part of the circulation system and connected together end to end.

2. In a boiler such as described, the manifolds included in the boiler circulation and connected together by nipples said manifolds having means for opening the ends.

3. In a boiler such asdescribed the combination of the side water-legs, the headers between' the legs, the mud-drum below the headers, and the manifolds between the side water-legs, said manifolds being connected to drum.

4. In a boiler such as described the combination of the water -legs forming the :boiler sides,.and the manifolds arranged end to end between the Water-legs and connected therewith, said manifolds having means for opening the end 5. A cross-tube sectional boiler comprising opposed headers, a steam-drum and muddrums, inclined cross-tubes connecting the headers, side water-legs, and tubes connecting the water-legs and arranged in the space formed by the incline of the cross-tubes.

6. The combination with the cross-tube sectional boiler having opposed and inclined cross-tubes, of a series of tubes included in the circulation system and arranged in the space formed by the incline of the crosstubes.

7. In a sectional crossetube boiler, the

combination with :the cross-tubes of opposite pitch, of the water-legs forming the boiler sides and included in the circulation system, and tubes connecting the opposed water-legs in the space formed by the incline of the aforesaid cross-tubes.

8. In a cross-tube steam-.boilercharacterized by opposed headers-and inclined opposed cross-tubes, the combination with such boilerof tubes included in the circulation and arranged at right angles .to and below the fire-door, and a mud-drum arranged below i.

the fire-door, the manifold and drum being connected together, and also included in the circulation system of the boiler.

HARRY DEL MAR. Witnesses:

WARREN B. HUTOHINSON, MARY A. MOELLER.

the water-legs, the headers, and the mud 

